Chem. J. Chinese Universities

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Preparation and Luminescent Properties of BaZnP2O7∶Eu3+ Salmon Pink-emitting Phosphor

YANG Zhi-Ping1*, YANG Guang-Wei1, WANG Shao-Li1, TIAN Jing2, LI Pan-Lai1, LI Xu1   

    1. College of Physic Science & Technology,
    2. College of Electronic and Informational Engineering, Hebei University, Baoding 071002, China
  • Received:2007-03-02 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
  • Contact: YANG Zhi-Ping

Abstract: BaZnP2O7∶Eu3+ phosphor was synthesized by a high temperature solid state reaction. The compound shows four major emission peaks locating at 588, 613, 622 and 654 nm that correspond to the 5D0-7F1, 5D0-7F2 and 5D0-7F3 typical transition of Eu3+, respectively. The influence of the concentration of Eu3+ ions on the emission intensity was investigated and the concentration quench did not occured. The role of charge compensation of Li+, Na+ and Cl- ions to the emission intensity was also studied. It was found that Li+ ions gave the best improvement to enhance the intensity of the emissions. The results show that BaZnP2O7∶Eu3+ red-emitting phosphor is very suitable for white light emitting diode(w-LED) based on UV InGaN chip.

Key words: Light emitting diode(LED), Phosphor, Eu3+, Phosphate

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